Combined plow and scraper.



I. E. ALLEN.

COMBINED PLOW AND SGRAPER. APPLICATION FILED 00125, w11.

1,031,035. Patented July 2, 1912.

Z SHEETS-SHEET l.

F. E. ALLEN.

COMBINED PLOW AND SCRAPEB..

APPLICATN ILED OCT. 25,1911, 1,031,035. Patented July 2, 1912.

2 SHEETS-SHEET 2.

@fui/imaxes L 1 720ML Y Q Q 'Umain-D sfrafrns rirrniafrxorrion.

FREDERICK E. ALLEN, 0F OAKLAND, CALIFORNIA., ASSIGNDB 'BO-THEI'NTERNALTIGNL .EXCAVATOR COMPANY, OF-

FORNIA.

Specication of Letters Patent.

COMBINEDYPLOW AND SCRAPEB.

Patented .hay 2,3912.

Application filed October 25, 191.1. Serial No. 656,754. l

will enable others skilled in the art to which.

it appertainsI to make and use the same, reference being had to theaceon'ipanaving drawings. and to the letters and figures of referencemarked thereon. which form a part of this specification.

This invention relates to new and useful improvements in Scrapers andplows adapted for use in excavating, etc.

'.l`lie invention consi s essentiall)Y in the employment of plowsadapted to break up the ground and of pivotal self-reversing runnersl orwheels adapted to raise the rear end of the scraper when the apparatusis moved in one direction, the runners reversing on a forward movementot the scraper, permitting the cutting bladt` to dig into the materialprevioiisl)Y loosened or broken up.

rl`he invention consists further in various details of construction Iandcombinations and ariaiigeiiieiits of parts. .which will bel hereinafterfull)v described. shown in the of the apparatus in which a wheel isutilizedl instead of a ruimer. Fig. 5 is a detail view of the'runiierand Fig. 6 1s an enlarged top plan view of the modified form shown inFig. 4. Reference now-being had to the details of the drawings byletter. A, A designate the two opposite'sdes of the scraper apparatuswhich are connected together at theirinner ends by a curved rear portionB.

.therearwardlv extending portion of which Fig. 2

has detachably fastened thereto ascraper plow C. A beam 'D connects thesidesn'ear their forward ends and to which acable D is adapted` to befastened in anysuitable manner. f

In order to weight down the apparatus, detachable Weighted members' Eare "mount ed in any suitable manner, such Ias upon the bracket nieibers E fastened tothe :opposite sides, and are AI irelferabiy held in-place b v means of bolts F passing through registering aperturestherein, suitable nuts F being fit-ted to the threaded ends of thebolts. l

`Projecting from the rear curved wall' of the scraper are the eye boltsH in which pins H are mounted and upon said pins are (pivotallv mountedthe' runnersv Kl; which ma)v be of any desired. construct-ion. In the f.lrawings I have shown thse runners as made up of curved bars or plateswhich arel @bent upon themselves and held together by means of boltsI L,one of said plates being turned into a roll as at Lf, forming a meanswhere iv the runner ma)v bel pivotallvY n'ioiinte-d upon the pin H'. Aswill be oli# served upon reference to Fig. 3 of the draw- OAKLAND,CALIFORNIA, A CORPORATION OF- CALLI- ings, l4 have illustratedtwo'riinners njioiiiitf ottone a short distance trom eachgside and.

mounted siniilarlvv upon theprear wall, and

plows N. each having an eye at the upper end ot' its shank portionpivotally mounted upon one ot said pins and a cutting blade N? isattached to or integral :withilie plow and disposed at an angle,asillustrated in the side elevation ofthe drawingsand presenting a drawcutting edge tothe soil when' the sciaper is drawn rearwardl by means ofthe cable O which is fastened to the. eye Abolt O upon therear curvedwall of the scraper.

Upon reference to the plan view of the drawings. 'theplow N is.bifiircate-d. haring two cutting edges which tiare outwardly. thecutting blade N2 being disposed intermediate the same. l

In Fig. 4 of the drawings. I have shown a slight modification of adetail of the inveiition in which, instead of the riinnerspl haveillustrated a wheel. designated b v let-4 ter T. and which is mounted insuitable hearings upon the arms S wliicliai'e pivotallv mounted in e vebolts ll fastened to the rear curved wall of the scraper.

The operation of my invention. will bc I 'termediate Y the A that thereis no scraper.

arrow in Fig. l, the' yplows readily understood and is as follows r--lnopposite walls spaced apart and connected th'e event of the' scraperbeing drawn bachward or in the direction indicated by the N, digginginto the ground, will break up the earth, whereas, if the scraper is'-drawn forward or in the lOpposite' direct-ion, the detachable plow Cwill-have' th same effect, filling the ,area inottoni to the 'scraperintermediatel the sides. In the event' ofv the scraper being drawnrearwardly, its load will remaindeposited'where left bythe foo wardmovement of the' scraper.,L Each time the scraper is drawn rearwardly,the Scrapers orthe wheel, if'usedvl in place there` of, will snuglyadjust themselves under the curved rear wall 'of the scraper. therebycausing the rear end of the same to be raised a slight distance abovethe grounflso that .the material loosened by the plows may freely passoutIk underneath the plow C and not bank up against the 'rear wall ofthe By raising the rear end of the scraper, the weight will come uponthe run ners "or wheel while' the apparatus is `plowing, therebylessening the lpo'wer required. Byreason of the weights upon thescraper, the latter maybe adjustedtto cut at differ# cnt depthsaccording to the' materialbeing worked upon.

What I claim to be new is l 1.A combined scraper and plow havingopposite Walls spaced apart; and connected by a rear wall, a detachableforwardly e`X- tending plow detachablyuheld to said rear wall, a plow.pivotally connected to the outer surface of the rear wall, and means forraising the rear end of the scraper as the latter isz-moved rearwardly,as set forth.A

2. A combined scraper and plow having opposite walls spaced apart andconnected by a rear wall, a detachable forwardly extending plowdetachably held to said rear wall, a plow pivotall-y connected to theouter surface of the rear wall, and means pivotally connectedV to theouter surface of the rear `wall of the Vscraperfand adaptedto raise thelatter as it is Ymoved rearwardly, as setforth.

8. A combined scraper and plow having lows., it being understoodconnected to the rear wall of the scraper and Y adapted to raise therear end of the scraper as it is moved rearwardly, as setforth.

lel. A combined scraper and plow having opposite walls spaced-apartandconnected by a rear Wall, a detachable forwardly' extending plowdetachably held to said rear Wall, a plow pivotally connected to theouter surface of the rear wall and having cutting blades projectingtherefrom and adapted to presentA a'l'draw cuttingedge to the soil asthe scraperis moved rearwardly, and means `for automatically kraisingthe scraper as the lat-ter is moved rearwardly, as set forth.

A combined scraper and plow having opposite walls spaced apart andconnected by a rear wall, a detachable forwardlv extending plowdetachably held to said rear wall, a. plow pivotally connected to ltheoutcr surface of' the rear wall and haringa curved shank portionconforming to the curved rear wall of the scraper, and means pivotcd tothe rear wall of the scraper and adapted to raise the rear partof thescraper as it is moved backward, as set forth.

6. A combined scraper and plow havingA opposite walls spaced apart andconnected by a rear wall, a Adetachable forwardly cx tending plowdetachably h'eld to said rear wall, .a plow pivotally connected to theoutcr surface of the rear wall and having a currcd shank portionconforming to the rear wall ol' the scraper, a runner, eyebloltsfpivotall)v mounted upon therear walland curved to conform to the curvedwall of the scraper against which it kis Vadapted to frictionallyContact to raise the rear end of rthe scraper as itis moved backward. asset forth.

Intesti-mony lwhereof I hereunto afix my signature in the presence oftwo witnesses.'

FREDERICK"P3L-ALLEN.

Witnesses: l

R. J'.y HOUGH, RALPH L. Karlsen.

